Pin aproxy version to revision 6

[weiiwang01]

Overview

The current GitHub Runner charm install aproxy from the edge channel. Given that aproxy is still in active development and subject to updates, pin the aproxy version to revision 6 to prevent potential issues.

Checklist

• The charm style guide was applied
• The contributing guide was applied
• The changes are compliant with ISD054 - Managing Charm Complexity
• The documentation is generated using src-docs
• The documentation for charmhub is updated.
• The PR is tagged with appropriate label (urgent, trivial, complex)

[github-actions]

Test coverage for 272c997

Name                    Stmts   Miss Branch BrPart  Cover   Missing
-------------------------------------------------------------------
src/charm.py              429     98    107     25    75%   79-80, 86-88, 112-113, 117-119, 155-157, 167->179, 177, 220-228, 240-244, 275, 352-357, 378, 395-396, 405-428, 446-448, 456-459, 466, 469-470, 486, 491-496, 541->544, 557-558, 560-561, 595-602, 626-627, 639-641, 656-657, 682-683, 685-686, 688-689, 763->765, 826-827, 843, 861-863, 867
src/charm_state.py         75      6     10      0    91%   90-97
src/errors.py              34      0      0      0   100%
src/event_timer.py         42      8      4      0    74%   94-97, 117-120
src/firewall.py            43     25     10      0    38%   38-42, 64-67, 75-149
src/github_type.py         36      0      0      0   100%
src/lxd_type.py            37      0      2      0   100%
src/metrics.py             67      2     10      1    96%   60->63, 150-151
src/runner.py             350     70    112     27    75%   50->52, 135, 233-240, 246-252, 279-280, 324-333, 357-362, 367, 387, 391-401, 450->453, 456-458, 465, 479, 489, 493, 495, 511, 559-564, 580-593, 604-636, 641, 679, 725-727, 731, 749, 784, 810, 815-827, 841, 861, 866->868, 880
src/runner_manager.py     274     26    102      9    90%   166, 219-221, 234-235, 247-249, 255-260, 264-265, 275-276, 295, 424, 443-447, 472, 555, 704, 724
src/runner_metrics.py     112      5     22      2    95%   133-134, 146, 215-216
src/runner_type.py         55      0     12      0   100%
src/shared_fs.py           80     10     12      0    89%   73-74, 160-161, 166-167, 173-174, 196-197
src/utilities.py           68      6     20      8    84%   74->76, 78->84, 89-91, 121, 135, 173, 226
-------------------------------------------------------------------
TOTAL                    1702    256    423     72    82%

Static code analysis report

Run started:2023-12-06 03:16:53.679474

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 3783
  Total lines skipped (#nosec): 0
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 10

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):